Unable to add unknown source from zip file

I am very new to the Raspberry Pi. I am unable to add a zip file from an unknown source. I have enabled it in settings and I am connected to the internet. I’m able to add Kodi addons from the repository but when I put in a url (exactly as instructed) and go to the Install from zip file, nothing happens. What am I doing wrong? I have a Raspberry Pi 3 running OSMC.

To get a better understanding of the problem you are experiencing we need more information from you. The best way to get this information is for you to upload logs that demonstrate your problem. You can learn more about how to submit a useful support request here.

Thanks for your understanding. We hope that we can help you get up and running again shortly.

https://paste.osmc.tv/nolelutiye

Somehow you have not provided useful logs. Did you follow the links instructions explicitly?